I have a 2000 Camry V-6 with an M/T and the trans has started comming out of 5th gear while driving. It is not popping out under load, it happens when I go from loaded (on the gas) to un-loaded (coasting). It is not a “pop”, when I get back on the gas, it is just in neutral. I can lightly hold the shifter and it stays in gear, but the lever moves alot during loading and un-loading. It only does this in 5th (both the shifter moving and popping out of gear). any ideas? I am going to investigate the linkage tonight and see if there is a problem there, but I am worried it is a bigger problem than that.

How may miles on this Camry? Is the shift pushing back when you get back on the gas? I am wondering if the input shaft might be moving in on decceleration and out on acceleration. That could be caused by a bad rear shaft/thrust bearing, a popped C-ring, or a loose retainer plate.

Is there are sign of shifter pull/push in 3rd or 4th? 3rd and 4th syncrosleeve is also mounted on the input shaft. 1st and 2nd gear syncrosleeves are on the counter shaft so they probably would not be moving also

Hopefully, repairing the linkage or servicing the selector will cure this problem. Keep us appraised of your progress.